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Remove all vestiges of chunks.

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Remove mallctls:
- opt.lg_chunk
- stats.cactive

This resolves #464.
This commit is contained in:
Jason Evans 2016-10-12 11:49:19 -07:00
parent 63b5657aa5
commit 9acd5cf178
23 changed files with 26 additions and 270 deletions
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12
src/base.c
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@ -41,7 +41,7 @@ static extent_t *
base_extent_alloc(tsdn_t *tsdn, size_t minsize)
{
extent_t *extent;
size_t csize, nsize;
size_t esize, nsize;
void *addr;
malloc_mutex_assert_owner(tsdn, &base_mtx);
@ -49,7 +49,7 @@ base_extent_alloc(tsdn_t *tsdn, size_t minsize)
extent = base_extent_try_alloc(tsdn);
/* Allocate enough space to also carve an extent out if necessary. */
nsize = (extent == NULL) ? CACHELINE_CEILING(sizeof(extent_t)) : 0;
csize = CHUNK_CEILING(minsize + nsize);
esize = PAGE_CEILING(minsize + nsize);
/*
* Directly call extent_alloc_mmap() because it's critical to allocate
* untouched demand-zeroed virtual memory.
@ -57,24 +57,24 @@ base_extent_alloc(tsdn_t *tsdn, size_t minsize)
{
bool zero = true;
bool commit = true;
addr = extent_alloc_mmap(NULL, csize, PAGE, &zero, &commit);
addr = extent_alloc_mmap(NULL, esize, PAGE, &zero, &commit);
}
if (addr == NULL) {
if (extent != NULL)
base_extent_dalloc(tsdn, extent);
return (NULL);
}
base_mapped += csize;
base_mapped += esize;
if (extent == NULL) {
extent = (extent_t *)addr;
addr = (void *)((uintptr_t)addr + nsize);
csize -= nsize;
esize -= nsize;
if (config_stats) {
base_allocated += nsize;
base_resident += PAGE_CEILING(nsize);
}
}
extent_init(extent, NULL, addr, csize, 0, true, true, true, false);
extent_init(extent, NULL, addr, esize, 0, true, true, true, false);
return (extent);
}